fix cyclic import

Author: sebastianMindee

mindee/input/__init__.py

@@ -1,12 +1,4 @@
 from mindee.input.local_response import LocalResponse
 from mindee.input.page_options import PageOptions
-from mindee.input.sources import (
-    Base64Input,
-    BytesInput,
-    FileInput,
-    InputType,
-    LocalInputSource,
-    PathInput,
-    UrlInputSource,
-)
+from mindee.input import sources
 from mindee.input.workflow_options import WorkflowOptions